A PriceGrabber.com survey of 1631 randomly selected adults showed that 555 of them have heard of the Sony Reader. The following STATDISK display results from a test of the claim that 35% of adults have heard of the Sony Reader.

Use the normal distribution as an approximation to the binomial distribution Assume α = 0.05 significance level
a. Is the test two-tailed, left-tailed, or right-tailed?
b. What is the test statistic?
c. What is the P-value?
d. What is the null hypothesis, and what do you conclude about it?
e. What is the final conclusion?

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Sample proportion: 0.340282 Test Statistic, Critical z: P-Value: z: -0.8228 1.9600 0.4106